Cork… Velvet… The Nike Air Max 90 has been definitely getting some interesting materials this spring. And now the trend continues with another exotic treatment hitting the classic Air Max runner. Four exotic treatments to be exact, as you’ll soon have the option to add a pony hair upper to the Air Max 90 in four animal prints including spotted, cheetah, zebra, and leopard. Get a preview of the cheetah print here (or its it leopard?) and remember that the four animal prints become available on the Air Max 90 beginning April 6th at Nike iD.